Device for the removal of detrimental matter from exhaust gases of internal combustion engines

ABSTRACT

Apparatus for the removal of detrimental matter from the exhaust gases of internal combustion engines in which a cylindrical drum having a substantially tangential inlet and an aligned substantially tangential outlet is disposed in the engine exhaust pipe for imparting a whirling motion to the exhaust gases in the drum. The drum has an orifice therein at the side opposite from the inlet and outlet. A mixing liquid is introduced into the orifice adapted to be dispersed and evaporated by the exhaust gases entering the drum from the engine manifold to thereby cool the drum and the exhaust gases and at the same time to form compounds between the vapor and the detrimental matters prior to passing to the muffler. A dehydrating device receiving the discharge of the muffler is provided for discharging substantially pure air from thedehydracting device into the atmosphere.

llnited States Patet 1 Nishinomiya 1 3,738,085 1 June 12, 1973 [76]Inventor: Tomekichi Nishinomiya, 1-11-2,

. Niijuku, Katsushika-ku, Tokyo,

Japan [22] Filed: Sept. 21 1971 [21] Appl. No.: 182,355

[30] Foreign Application Priority Data June 29, 1971 Japan 46/47417 [56]References Cited UNITED STATES PATENTS 1,048,111 12/1912 Tobey 261/79 A1,080,208 12/1913 Gardner 55/DIG. 30

2,789,032 4/1957 Bayley et al. 55/DlG. 30 2,935,840 5/1960 Schoppe261/79 A Primary ExaminerDennis E. Talbert, Jr. Attorney- Arthur E.Dowell, Jr. and Arthur E. Dowell, I11 1 [57] ABSTRACT Apparatus for theremoval of detrimental matter from the exhaust gases of internalcombustion engines in which a cylindrical drum having a substantiallytangential inlet and an aligned substantially tangential outlet isdisposed in the engine exhaust pipe for imparting a whirling motion tothe exhaust gases in the drum. Th'e drum has an orifice therein at theside opposite from the inlet and outlet. A mixing liquid is introducedinto the orifice adapted to be dispersed and evaporated by theexhaust'gases entering the drum from the engine manifold'to thereby coolthe drum and the exhaust gases and at the same time to form compoundsbetween the vapor and the detrimental matters prior to passing to themuffler. A dehydrating device receiving the discharge of the muffler isprovided for discharging substantially pure air from thedehydractingdevice into the atmosphere.

8 Claims, 2 Drawing Figures PAIIENIED m w;

FIG. 2

I Q INVENTOR V M lid) BY AW DESCRIPTION OF INVENTION This inventionrelates to novel means for the removal of detrimental matter from theexhaust gases of internal combustion engines.

The principal object of the invention is to provide in such means amixing device which is inserted in the exhaust pipe leading from theexhaust manifold of an internal combustion engine to the usual muffler,themixing device comprising a cylindrical drum having a substantiallytangential inlet and an aligned substantially tangential outlet wherebythe exhaust gases in passing through said exhaust pipe towards themuffler are given a whirling motion.

Into the drum of said mixing device is dropped a mixing liquid from asupply tank holding a quantity of water, phosphoris acid, peroxide ofbarium and peroxide of hydrogen. The mixing liquid dropped into thedrum, disperses and evaporates by means of the heat of the gasesexhausted from the engine. As this evaporated liquid cools down theinner part of the drum the exhaust gas which comes into the drum fromthe exhaust manifold is also cooled down and its volume decreases, and alow pressure condition occurs in the inner part of the drum. At the sametime carbon monoxide, sulphurous acid gas, lead, hydrogenchloride,nitrogenoxide, carbon, dust, etc., are melted into the above mentionedevaporated mixed liquid, mingled into a compound with the vapor, anddischarged from the exhaust gas outlet. The compound of the vapor andcarbon monoxide, sulphurous acid gas, lead, hydrogenchloride,nitrogenoxide, carbon, dust, etc., which is discharged out of the outletof the mixing device is dehydrated and separated by means of passingsame beyond the muffler and through a dehydrating device in whichcalcium carbonate, etc., is contained, and which is connected to therear end of the muffler, and the substantially pure air remained isdischarged into the open air.

I will explain the invention with reference to the accompanying drawing,which illustrates one practical embodiment thereof, to enable othersfamiliar with the art to adopt and use the same; and will summarize inthe exhaust pipe between the manifold and muffler.

As shown in FIG. 2, the internal combustion engine l is provided withthe usual exhaustmanifold 2. An exhaust pipe 3 connects the rear end ofthe intake manifold 2 with the inlet of a muffler 4. A dehydratingdevice 5 is connected by pipe 6 from the rear end of the muffler 4 tothe inlet of the dehydrating device 5, which device exhausts throughpipe 7 to the atmosphere.

In the pipe 3 is a mixing device shown more particularly in FIG. 2, thesame consisting of a cylindrical drum 8 having a substantiallytangential inlet 9 and an aligned substantially tangential outlet 10whereby the exhaust gases entering the mixing drum 8 will give awhirling motion within the drum 8.

Extending laterally into the drum 8 at the side remote from the inlet 9and outlet 10 is an orifice 8a (FIG. 1) receiving the end of a pipe 11(FIG. 2) extending from a tank 12, which tank 12 holds a quantity ofmixing liquid consisting of water, phosphoric acid, peroxide of bariumand peroxide of hydrogen which is dropped from the pipe 11 into the drum8.

In operation, when the engine 1 is in operation the mixing liquid fromthe tank 12 is dropped into the drum 8 and is dispersed and evaporatesby means of the heat of the gas exhausted from the engine 1. As thisevaporated mixing liquid cools down the inner walls of the drum 8, theexhaust gas which is whirling within the drum 8 and which comes intocontact with the walls of the drum 8 is also cooled down, and its volumedecreases, and a low pressure condition occurs in the inner part of thedrum 8. At the same time carbon monoxide, sulphurous acid gas, lead,hydrogenchloride nishowing means for introducing the mixing liquid intotrogenoxide, carbon, dust, etc., are melted into the above mentionedevaporated mixing liquid, mingled into a compound with the vapor anddischarged from the exhaust gas outlet 10. The compound of the vapor andcarbon monoxide, sulphurous acid gas, lead, hydrogenchloride,nitrogenoxide, carbon, dust, etc., which is discharged out of the outlet10 is dehydrated and separated by means of passing from muffler 4through the dehydrating device 5 in which calcium carbonate etc. iscontained, and which device 5 is connected with the rear end of themuffler 4, and the pure air remaining in the dehydrating device 6 isdischarged into the open air or atmosphere.

Each of the devices, i.e., the mixing device 8 of the exhaust pipe 3which is characterized by its capacity of forming the compound of thedetrimental matters in the exhaust-gas and the vapor into which themixing liquid is transformed by the heat from the exhaust-gas whichenters the drum 8, and the dehydrating device 5 of the detachablecontainer which contains the dehydrator in which the chief ingredient iscalcium, together form novel means for removal of detrimental mattercontained in the exhaust gas of internal combustion engines.

I claim:

1. Apparatus for the removal of detrimental matter from the exhaustgases of internal combustion engines having an exhaust manifold, and anexhaust pipe extending from said manifold, comprising a cylindrical drumhaving a substantially tangential inlet and outlet disposed in theexhaust pipe for imparting a whirling motion to said exhaust gases insaid drum; said drum having an orifice therein; means for introducing amixing liquid into said orifice which will be dispersed and evaporatedby the exhaust gases entering from said manifold to thereby cool thedrum and the exhaust gases and at the same time to form compoundsbetween 1 3. In apparatus as set forth in claim 1, said detrimentalmatters comprising carbon monoxide, sulphurous acid gas, lead,hydrogenchloride, nitrogenoxide, carbon, and dust which are melted intothe evaporated mixing liquid and form compounds with said vapor.

4. In apparatus as set forth in claim 1, said dehydrating chambercontaining calcium carbonate.

5. Apparatus for the removal of detrimental matter from the exhaustgases of internal combustion engines having an exhaust manifold, amuffler, and an exhaust pipe connecting said manifold and muffler,comprising a cylindrical drum having a substantially tangential inletand an aligned substantially tangential outlet disposed in the exhaustpipe for imparting a whirling motion to said exhaust gases in said drum;said drum having an orifice therein at the side opposite from said inletand outlet; means for introducing a mixing liquid into said orificewhich will be dispersed and evaporated by the exhaust gases enteringfrom said manifold to thereby cool the drum and the exhaust gases and atthe same time to form compounds between said vapor and said detrimentalmatters prior to passing to the muffler; and a dehydrating devicereceiving the discharge of the muffler for discharging substantiallypure air from the dehydrating device into the atmosphere.

6. In apparatus as set forth in claim 5, said mixing liquid comprisingwater, phosphoric acid, peroxide of barium and peroxide of hydrogen.

7. In apparatus as set forth in claim 5, said detrimental matterscomprising carbon monoxide, sulphurous acid gas, lead, hydrogenchloride,nitrogenoxide, carbon, and dust which are melted into the evaporatedmixing liquid and form compounds with said vapor.

8. In apparatus as set forth in claim 5, said dehydrating chambercontaining calcium carbonate.

2. In apparatus as set forth in claim 1, said mixing liquid comprisingwater, phosphoric acid, peroxide of barium and peroxide of hydrogen. 3.In apparatus as set forth in claim 1, said detrimental matterscomprising carbon monoxide, sulphurous acid gas, lead, hydrogenchloride,nitrogenoxide, carbon, and dust which are melted into the evaporatedmixing liquid and form compounds with said vapor.
 4. In apparatus as setforth in claim 1, said dehydrating chamber containing calcium carbonate.5. Apparatus for the removal of detrimental matter from the exhaustgases of internal combustion engines having an exhaust manifold, amuffler, and an exhaust pipe connecting said manifold and muffler,comprising a cylindrical drum having a substantially tangential inletand an aligned substantially tangential outlet disposed in the exhaustpipe for imparting a whirling motion to said exhaust gases in said drum;said drum having an orifice therein at the side opposite from said inletand outlet; means for introducing a mixing liquid into said orificewhich will be dispersed and evaporated by the exhaust gases enteringfrom said manifold to thereby cool the drum and the exhaust gases and atthe same time to form compounds between said vapor and said detrimentalmatters prior to passing to the muffler; and a dehydrating devicereceiving the discharge of the muffler for discharging substantiallypure air from the dehydrating device into the atmosphere.
 6. Inapparatus as set forth in claim 5, said mixing liquid comprising water,phosphoric acid, peroxide of barium and peroxide of hydrogen.
 7. Inapparatus as set forth in claim 5, said detrimental matters comprisingcarbon monoxide, sulphurous acid gas, lead, hydrogenchloride,nitrogenoxide, carbon, and dust which are melted into the evaporatedmixing liquid and form compounds with said vapor.
 8. In apparatus as setforth in claim 5, said dehydrating chamber containing calcium carbonate.